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Immediate effects of using insoles with various wedges on activation and co-contraction indices of selected trunk muscles during load lifting.
Applied Ergonomics ( IF 3.1 ) Pub Date : 2020-06-24 , DOI: 10.1016/j.apergo.2020.103195
Mohammad Hosein Ghasemi 1 , Mehrdad Anbarian 1 , Hamed Esmaeili 2
Affiliation  

Trunk muscles play an important role during load lifting and contract to control trunk stability. The aim of present study was to investigate immediate effects of using various insole wedges on activation and co-contraction indices of selected trunk muscles during load lifting. Thirty able-bodied males completed load lifting task using nine various insole wedges. The results showed these significant differences: for normalized mean amplitude of RA muscle between posterior and anterior-medial wedges and for QL muscle between posterior and lateral wedges, for normalized peak amplitude of RA muscle between posterior and anterior-medial wedges, for median frequency of LES muscle between anterior-medial and anterior-lateral wedges, and for co-contraction of RA/TES, RA/LES and RA/MU between posterior and anterior-medial wedges (P = 0.001). These findings should be considered during designation of shoe or insole for work environments. Future studies need to assess other biomechanical aspects of using various insole wedges during work-related tasks.



中文翻译:

在负荷提升过程中,使用具有各种楔形的鞋垫对所选躯干肌肉的激活和收缩指数的即时影响。

躯干肌肉在举重和收缩过程中起着重要作用,以控制躯干的稳定性。本研究的目的是研究在负荷提升过程中使用各种鞋垫楔形物对所选躯干肌肉的激活和共收缩指数的即时影响。30名身体强壮的雄性使用9种不同的鞋垫楔形物完成了举重任务。结果显示出这些显着差异:对于后内侧和前内侧楔形之间的RA肌肉的标准化平均振幅以及前后和外侧楔形之间的QL肌肉,对于前后楔形之间的RA肌肉的标准化峰值振幅,中位数为LES肌在前-内侧和前-外侧楔形之间,以及用于RA / TES,RA / LES和RA / MU在后和前-内侧楔形之间的共同收缩(P = 0.001)。在为工作环境指定鞋子或鞋垫时应考虑这些发现。未来的研究需要评估在工作相关任务期间使用各种鞋垫楔形物的其他生物力学方面。

更新日期:2020-06-24
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